what libraries should be linked in lex & yacc (solaris) to include YY_BUFFER_STATE

Question

what libraries should be linked in lex & yacc (solaris) to include YY_BUFFER_STATE. when i use YY_BUFFER_STATE in lex and compile it .i get an error saying tat it is undeclared.but when i do it in unix i am getting the output so pls help me.

Answer 1

The lex library is historically libl so it would be linked with -ll. A classical link line might be -ll -ly for lex and yacc.

Sometimes you need -lfl to specify the flex library.

Since you are on Solaris you may have the real lex/yacc and you may have the GNU versions, which are rather different in many ways. I think YY_BUFFER_STATE is specific to the GNU implementation.

Answer 2

There's no library required for YY_BUFFER_STATE -- its all built into the generated scanner by flex. However, it IS flex specific, so you have to use Gnu flex and not the lex that comes with solaris.